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preface Series of articles: Display process from Android Activity creation to View Android four components communication core We know that the four components of Android: Activity/Service/Broadcast/ContentProvider can conduct cross process communication, which are the ability to realize cross process communication with Binder. There are ...

During the Mid Autumn Festival holiday, I wanted to have a good rest. My girlfriend said that the Tencent classroom courses downloaded from my mobile phone could be transferred to the computer because there was not enough space on my mobile phone. I thought it was not very simple.. Sure enough, it was not as simple as I thought. I found the vid ...

Android custom settings alarm clock Alarm time setting and display The layout of the alarm clock is very simple, that is, a simple time setting, so you can write a simple layout button yourself, but please repeat it. In addition, use the time dialog TimePickerDialog to set the time, and use Calendar to obtain the time of the current syste ...

4, Experimental equipment and tools (including software debugging tools) 5, Experimental steps Experiment 1: transplant embedded database sqlite 1 ~ 5: install sqlite database 6: Use of database Method 1: command to manipulate the database Mode 2: program to manipulate the database Outside the experiment (you can see if you a ...

@Override public void requestChildFocus(View child, View focused) { if (!mIsLayoutDirty) { scrollToChild(focused); } else { mChildToScrollTo = focused; } super.requestChildFocus(child, focused); } Because the requestLayout() method was called before addViewInner: @Override public void requestLayout() { mIsLayou ...

Lab 2 Android Data Storage Instance Address Book 1. Experimental Purpose (1) Skilled in UI interface design process and methods; (2) To further understand the establishment and operation of the SQLite database; (3) Skilled in Andriod database programming. 2. Experimental Environment (1) Hardware: PC, ot ...

Original text: ASP.NET Core file upload preface First blog post Introduced how to asp.net Core uses Redis and Protobuf for Session caching. This article is a small function used in the development process, how to do single file and multi file upload. If you think it will help you, you may as well click "recommend". cat ...

In the previous article, I introduced the logic of relationship mapping in Entity Framework Core. The foreign key mapping of EF left in the previous article is not mentioned, that is, the relationship of one-to-one, one to many, many to one, many to many, etc. This article will give you a detailed analysis of how to set up these mappings. 1. Re ...

Please be patient to read this module because of its large content and length. The profile module is divided into two parts [x] personal data [x] Data Modification 1. Personal Data 1. Profile interface (1) Create a profile interface Create a java class named UserInfoActivity in the com.buxuegu.activity package.Create a layout file name ...

Learn to use LitePal to operate database About LitePal: LitePal is an Android open source library, which makes it very easy for developers to use SQLite database. You can do most of the database operations without writing a single SQL statement, including creating tables, updating tables, constraining operations, ...